Individuals
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ? | ( | < | None
| Surname | Individuals |
|---|---|
| O'Brien | 1 |
| O'Leary | 1 |
| Oinas | 1 |
| Olson | 17 |
| Olthoff | 1 |
| Orbison | 9 |
| Orlik | 1 |
| Ormsby | 4 |
| Osborn | 1 |
| Ottinger | 4 |
| Overly | 2 |